Clip for a writing instrument



FIG. 1 is a rear view showing my new design for a clip for a writing instrument;

FIG. 2 is a front view of the clip for a writing instrument of FIG. 1;

FIG. 3 is a left side view of the clip for a writing instrument of FIG. 1, the right side view being a mirror image thereof;

FIG. 4 is a top plan view of the clip for a writing instrument of FIG. 1; and,

FIG. 5 is a bottom plan view of the clip for a writing instrument of FIG. 1. 

The ornamental design for a clip for a writing instrument, as shown and described. 